Don't write off the mum with tracky bums and no make up on.
There is a mum like that who has a dd in my dd's class.
I have befriended this mum.
She works in CID. She has the best sense of humour I have ever come across (you'd have to after dealing with death and violence during the day), she is the first one up for a night out, and is the one who keeps the group laughing long after we should have all headed home. She is the most kind, caring and compassionate person I know, taking time to help anyone who needs it.
So yes, after a 12 hour shift, which invariably involved a dead body, she stands in teh school playground with a haggard look upon her face, pale blue joggers on, and [gasp] a fleece.
But do not for a second assume she has let herself go.
She has not.
But we can't all be so shallow that we need to glamorize ourselves in order to be interesting.
Sorry, just had to get that of my chest. I hate snap judgements on people based on what they wear!